The extended system context describes the system interfaces and the detailed connection to the system actors and to the internal parts of the actors. In the previous post How to model a simple system context with SysML I’ve written about system context in general and the simple edition of system context that is simply spoken just…
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The system context defines the system boundary and all system actors – humans and external systems – that interact with the system under development. It is one of the most important parts of the system model. Many artifacts of the system specification and architecture are relative defined to the definition of the system. Every system behavior…
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On the first view it seems to be simple to define the package structure of a SysML model. However you’ll often get problems with a implicit built structure. A model has many – orthogonal – aspects and abstraction layers that could be mapped into the package structure, e.g. domain, modeling, or organizational aspects. You can…
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Many systems exist in different configurations. A product line, a custom product or different designs for trade-off studies. The current version 1.2 of SysML doesn’t provide explicit built-in language constructs to model variants. The profile mechanis of SysML can be used to extend SysML with a concept for variant modeling. I’ve defined a simple variant…
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A message from the INCOSE Telescope modeling challenge team: The INCOSE Telescope modeling challenge team releases version 1.1. of its MBSE plugin for MagicDraw with SysML: https://sourceforge.net/projects/mbse4md/ Support for more productive Model-Based Systems Engineering, following the recommendations in the Cookbook of the INCOSE SE2 Challenge team. The Plugin for the MagicDraw modeling tool provides support for…
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The newest version 1.3 of the SysML will be published in a few weeks. The development of the version 1.3 already finished last year and we currently work on the next version 1.4. I’ll report on the work for the 1.4 version in a separate post in the near future. Typically the dot versions of…
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I’ve just found this question in a sysml discussion forum: Is it really not possible to place requirements objects on an Activity, State Machine, or several other similar behavioral diagrams? Yes, it is not allowed to put requirement elements on a state machine or activity diagram. Since it is essential to show such cross cutting…
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NoMagic provides a free SYSMOD plugin for MagicDraw (see Download page). NoMagic just released SysML version 17.0.1 SP2 with the following updates for the SYSMOD plugin: The New SYSMOD profile version is now with enhanced variants modeling support (See CarAccessSystem example model). The message box stating that the SYSMOD plugin should be installed will no longer…
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The technical term System is relative and depends on the viewpoint. From one viewpoint an entity is a system, from another one it is a subsystem or an external system. It is a role that is applied to an entity. You loose this flexibility of changing the viewpoint if you model a system context with…
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In many respects, the future of systems engineering can be said to be “model-based.” (INCOSE Vision 2020) Model Based Systems Engineering (MBSE) is a key technology to respond to the need of developing more and more complex systems in more and more complex (network) organizations. I work in the MBSE domain since 10 years. I’ve written…
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